fix: consistently strip HTML from tool input before JSON parsing

[sauravbaid3]

Issue: The issue was that the Flowise UI was adding HTML/markdown formatting to JSON input fields, but the stripHTMLFromToolInput function was not being applied consistently to all JSON parsing operations. This caused:
JSON Parse Failures: When tools tried to parse input that contained HTML formatting
Inconsistent Behavior: Some fields worked while others failed
User Confusion: Valid JSON inputs were being rejected due to hidden formatting

Fix: The stripHTMLFromToolInput function:
Removes HTML formatting using TurndownService
Cleans up escaped characters that might interfere with JSON parsing
Returns clean text that can be safely parsed as JSON

[HenryHengZJ]

thanks for the PR, can you walk me through an example?

[dmitry-kndrashuk-tfs]

hey @HenryHengZJ this is actuallu happening
input values always got wrapped with html tags

flowise:dev:   { inputArgName: 'chatChannelId', inputArgValue: '<p>abc</p>' },
flowise:dev:   { inputArgName: 'teamId', inputArgValue: '<p>dfr</p>' },
flowise:dev:   { inputArgName: 'maxResults', inputArgValue: '<p>10</p>' }

i had to add filtering as well

[HenryHengZJ]

hey @HenryHengZJ this is actuallu happening input values always got wrapped with html tags

flowise:dev:   { inputArgName: 'chatChannelId', inputArgValue: '<p>abc</p>' },
flowise:dev:   { inputArgName: 'teamId', inputArgValue: '<p>dfr</p>' },
flowise:dev:   { inputArgName: 'maxResults', inputArgValue: '<p>10</p>' }

i had to add filtering as well

your screenshot is ToolNode right? but none of your changes is related to Tool.ts ? From my latest testing, they all seems to work fine

[PinkPong]

your screenshot is ToolNode right? but none of your changes is related to Tool.ts ? From my latest testing, they all seems to work fine

yep, correct
btw, i'm having hard time to make Agent to use "internal" tools
always have to create separate tool node and link it agent
also i've got an impression that "internal" tool doesn't respect it's parameters

[PinkPong]

agent will skip teams usage

and here not